Electromagnetic Railgun

Transcription

1 Electromagnetic Railgun ASNE Combat System Symposium March 2012 CAPT Mike Ziv, Program Manger, PMS405 Directed Energy & Electric Weapons Program Office DISTRIBUTION STATEMENT A: Approved for Public Release

2 Report Documentation Page Form Approved OMB No Public reporting burden for the collection of information is estimated to average 1 hour per response, including the time for reviewing instructions, searching existing data sources, gathering and maintaining the data needed, and completing and reviewing the collection of information. Send comments regarding this burden estimate or any other aspect of this collection of information, including suggestions for reducing this burden, to Washington Headquarters Services, Directorate for Information Operations and Reports, 1215 Jefferson Davis Highway, Suite 1204, Arlington VA Respondents should be aware that notwithstanding any other provision of law, no person shall be subject to a penalty for failing to comply with a collection of information if it does not display a currently valid OMB control number. 1. REPORT DATE MAR TITLE AND SUBTITLE Electromagnetic Railgun 2. REPORT TYPE 3. DATES COVERED to a. CONTRACT NUMBER 5b. GRANT NUMBER 5c. PROGRAM ELEMENT NUMBER 6. AUTHOR(S) 5d. PROJECT NUMBER 5e. TASK NUMBER 5f. WORK UNIT NUMBER 7. PERFORMING ORGANIZATION NAME(S) AND ADDRESS(ES) Directed Energy & Electric Weapons Program Office,Washington Navy Yard,DC, PERFORMING ORGANIZATION REPORT NUMBER 9. SPONSORING/MONITORING AGENCY NAME(S) AND ADDRESS(ES) 10. SPONSOR/MONITOR S ACRONYM(S) 12. DISTRIBUTION/AVAILABILITY STATEMENT Approved for public release; distribution unlimited 11. SPONSOR/MONITOR S REPORT NUMBER(S) 13. SUPPLEMENTARY NOTES Presented at : Combat Systems Symposium 2012: March 26-27, 2012, Sheraton National Hotel, Arlington, VA 14. ABSTRACT 15. SUBJECT TERMS 16. SECURITY CLASSIFICATION OF: 17. LIMITATION OF ABSTRACT a. REPORT unclassified b. ABSTRACT unclassified c. THIS PAGE unclassified Same as Report (SAR) 18. NUMBER OF PAGES 13 19a. NAME OF RESPONSIBLE PERSON Standard Form 298 (Rev. 8-98) Prescribed by ANSI Std Z39-18

3 Insulator How Railgun Works Operating Principle Cross-Section (4) Sabot and armature discards (3) Force from magnetic field and armature current pushes projectile down barrel B Rail (2) Switch closes, current flows through cables, rails & armature J F Composite Wrap (1) Electrical energy stored in capacitor bank Slide 2 Lorentz Force = Current (J) X Magnetic Field (B) or Lorentz Force =1/2 Inductance Gradient (L ) * Current (I)^2

4 Railgun Operational Impact Wide Area Coverage Increased speed to target 200+ NM Accelerates operational tempo Faster attrition of enemy personnel and equipment Operation timeline shifts left Reduces Cost per Kill Lower Unit Cost Lower handling cost Enhances Safety No risk of sympathetic detonation Simplified storage, transportation and replenishment Reduced collateral damage No unexploded ordnance on battlefield Reduces Logistics Eliminates gun powder trail Deep magazines Multi-Mission Capability Surface Warfare Missile Defense Long Range Fires Direct Fire ASuW Multi-Mission Capable for Offense and Defense Slide 4

5 Naval Railgun Key Elements Launcher Projectile BAE GA Multi-shot barrel life Barrel construction to contain rail repulsive forces Scaling from 8MJ (state of the art) to 32MJ to 64MJ Muzzle Energy Thermal management techniques M&S Represent interaction between bore and projectile Pulse Forming Network (PFN) Capacitors or Rotating Machines Dispensing and Unitary Rounds Gun launch survivability kgee acceleration Thermal Risk Management Hypersonic guided flight for accuracy Lethality mechanics Ship Integration Dynamic Power Sharing Space and Weight Thermal and EM Field Management Energy Density Rep rate operation & thermal management Switching Torque management and multi-machine synchronization (rotating machine) Slide 5

6 Demo Selections EM Railgun INP Phase I FY05 FY06 FY07 FY08 FY09 FY10 FY11 Milestones Program Initiation August 2005 Initial 8MJ Test Capability World Record Launch 10MJ Initial 16MJ Test Capability S&T Go No-Go Decision Point Launcher Bore Life Development 32MJ Lab Gun Bore Life Development 32 MJ Launcher 100 Shot Bore Life Demo Advanced Containment Development Pulsed Power System Development Integrated Launch Package Development 3 Concept Designs EMLF Test Facility NSWCDD BAE General Atomics Boeing Draper Government Concept Trades Technology Development and Preliminary Design Detail Design Fabrication For Launcher Testing 100MJ Capacitor Bank General Atomics Projectile Baseline Design & Critical Component Development Unitary Lethality Demo Rep Rate Capacitor Test Bed Baseline Design Dispense Demo Alternative Studies Critical Component Demos 32 MJ Launcher 100 Shot Bore Life Demo Pulsed Power Recommendation Integrated Launch Package (ILP) Demos Slide 6

7 Progress FY05 FY11 GA Med-Cal Blitzer (IRAD) Lab Launcher Rep-Rate Test Bed Muzzle energy: From 6MJ to 32MJ Bore Life From 10s to 100s Multiple configurations & materials Industry Launcher Prototypes From concept to hardware Pulsed power From single shot To multi-shot capable design Projectile From slugs & sand catch To instrumented and dispensing flight bodies on open range Mission From Land Attack To Multi-Mission Initiative BAE 5M Prototype Dispense Test Slide 7

8 Advanced Containment Launchers The industry developed Advanced Containment Launchers (ACLs) detailed designs are competition sensitive and each include unique materials, however they both share the following attributes: Advanced composite containment designs Advanced insulator materials GA 10-meter ACL Blitzer Testing at DPG Subscale ACL launcher ( Blitzer ) built by GA to provide risk reduction. Multiple test series have been completed at Dugway Proving Grounds (DPG), Utah Full-scale 10-meter ACL in production GA 10-meter ACL scheduled to be delivered to the Electromagnetic Launch Facility (EMLF) at NSWC Dahlgren and complete testing during the 1 st quarter of FY meter version of 10-meter ACL recently tested at EMLF (1/2011) with full-scale bore (cross-section), breech, muzzle and mount. Full-length ACL in production. BAE 10-meter ACL scheduled to be delivered to the Electromagnetic Launch Facility (EMLF) at NSWC Dahlgren and complete testing during the 4 th quarter of FY2011 BAE 10-meter ACL 5-meter ACL Testing at EMLF Slide 8

9 HE versus KE Projectiles High Explosive (HE) Warhead Kinetic Energy (KE) Projectile Non-uniform frags Uniform frags Blast Overpressure Large Area of Fragment Spray High Collateral Damage No Blast Overpressure Focused Fragment Pattern Minimal Collateral Damage UNCLASSIFIED Slide 10

10 Power & Energy Pulsed Power at the Electromagnetic Launch Facility, Dahlgren, VA Slide 12

11 Railgun System Integration Slide 13

12 EM Railgun INP Phase II FY12 FY13 FY14 FY15 FY16 FY17 Rep-Rate Pulsed Power Prototype Fabrication & Install Demo Rep Rate Lab Launcher with Auto-Loader Design Fabrication & Install Initial Rep-Rate Rep-Rate Demo (Enables 100+ NM application) 5MJ Rep-Rate Testing Rep Rate Industry Launcher EMLF Test Facility NSWCDD Concept Design Preliminary Detail Design and Fabrication Industry Launcher Rep-Rate Demo INP II Focused on Rep-Rate and Thermal Management Slide 14

13 Summary Naval EM Railgun is a Navy after Next Game Changer Risk Mitigation Barrel Life Development Advanced Containment Launchers Competitive solutions Critical Projectile Components Understanding Ship and Weapons System Integration Requirements Challenges Understood and Being Addressed Slide 15